99171130459 has 2 divisors, whose sum is σ = 99171130460. Its totient is φ = 99171130458.

The previous prime is 99171130441. The next prime is 99171130469. The reversal of 99171130459 is 95403117199.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99171130459 - 2¹¹ = 99171128411 is a prime.

It is not a weakly prime, because it can be changed into another prime (99171130469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49585565229 + 49585565230.

It is an arithmetic number, because the mean of its divisors is an integer number (49585565230).

Almost surely, 2^99171130459 is an apocalyptic number.

99171130459 is a deficient number, since it is larger than the sum of its proper divisors (1).

99171130459 is an equidigital number, since it uses as much as digits as its factorization.

99171130459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306180, while the sum is 49.

The spelling of 99171130459 in words is "ninety-nine billion, one hundred seventy-one million, one hundred thirty thousand, four hundred fifty-nine".